Equivariant reduction of Yang-Mills theory over the fuzzy sphere and the emergent vortices

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Harland, D.; Kuerkcueoglu, S.: Equivariant reduction of Yang-Mills theory over the fuzzy sphere and the emergent vortices. In: Nuclear Physics B 821 (2009), Nr. 1-2, S. 380-398. DOI: https://doi.org/10.1016/j.nuclphysb.2009.06.031

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Abstract: 
We consider a U(2) Yang-Mills theory on M x S(F)(2) where M is a Riemannian manifold and S(F)(2) is the fuzzy sphere. Using essentially the representation theory of SU(2) we determine the most general SU(2)equivariant gauge field on M x S(F)(2). This allows us to reduce the Yang-Mills theory on M x S(F)(2) down to an Abelian Higgs-type model over M. Depending on the enforcement (or non-enforcement) of a "constraint" term, the latter may (or may not) lead to the standard critically-coupled Abelian Higgs model in the comutative limit, S(F)(2) -> S(2). For M = R(2), we find that the Abelian Higgs-type model admits vortex solutions corresponding to instantons in the original Yang-Mills theory. Vortices are in general no longer BPS, but may attract or repel according to the values of parameters. (C) 2009 Elsevier B.V. All rights reserved.
License of this version: CC BY 4.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2009
Appears in Collections:Fakultät für Mathematik und Physik

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pos. country downloads
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1 image of flag of Germany Germany 65 71.43%
2 image of flag of United States United States 14 15.38%
3 image of flag of China China 9 9.89%
4 image of flag of Taiwan Taiwan 1 1.10%
5 image of flag of Russian Federation Russian Federation 1 1.10%
6 image of flag of Indonesia Indonesia 1 1.10%

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